Construction of All-Carbon Quaternary Stereocenters by Zinc-Mediated Barbier-Type Allylation in Aqueous Media
作者:Ken-ichi Takao、Kin-ichi Tadano、Tomo Miyashita、Nozomi Akiyama、Takuya Kurisu、Kohei Tsunoda
DOI:10.3987/com-12-s(n)31
日期:——
Stereoselective construction of an all-carbon quaternary stereocenter by Barbier-type allylation in aqueous media is described. Sugar-derived aldehydes, 2,3-O-isopropylidene-D-glyceraldehyde and 2,4-O-benzylidene-D-threose, were reacted with geranyl chloride in the presence of zinc powder to provide gamma-adducts bearing quaternary stereocenters with good stereoselectivity.